Comparative study of two weir type cascade solar stills with and without PCM storage using energy and exergy analysis

Sarhaddi, Faramarz; Tabrizi, Farshad Farshchi; Zoori, Halimeh Aghaei; Mousavi, Seyed Amir Hossein Seyed

doi:10.1016/j.enconman.2016.11.044

Cited by 161 publications

(29 citation statements)

References 29 publications

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“…Due to low yield of the SSs, many investigators introduced several scrupulous designs to enhance the output by enhance the evaporation rate of water. Researchers suggested different designs to improve the SSs' performance, such as double slope [3], stepped SS [4,5], SS with phase change materials (PCMs) [6][7][8][9] wick SS [ 10 -12 ] , hybrid SS [13][14][15], stepped SS with continual water circulation [ 3 ] , wind speed [16], SS with storage materials [17,18], SS with nanoparticles [19], SS with PV/T [20][21][22] , and SS with vertical ripple surface [23].…”

Section: Introductionmentioning

confidence: 99%

Energy and exergy analysis of solar stills with micro/nano particles: A comparative study

Sharshir

Peng

Elsheikh

et al. 2018

Energy Conversion and Management

172

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Section: Introductionmentioning

confidence: 99%

Energy and exergy analysis of solar stills with micro/nano particles: A comparative study

Sharshir

Peng

Elsheikh

et al. 2018

Energy Conversion and Management

172

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“…10, the minimum efficiency is observed in January -43%, the maximum in August -54%. The energy efficiency of a heat pump assisted regenerative solar still is the ratio of evaporative heat transfer to the solar radiation intensity on the absorber plate and power input to the heat pump [10].…”

Section: Resultsmentioning

confidence: 99%

“…where M eq is the equivalent heat capacity of PCM [10], and it is indicated in different phases of the PCM during the process of state change from solid to liquid as follows:…”

Section: Mathematical Modelmentioning

confidence: 99%

Numerical simulation of a heat pump assisted regenerative solar still with PCM heat storage for cold climates of Kazakhstan

Shakir¹,

Saparova²,

Belyayev³

et al. 2017

Therm sci

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A numerical model has been proposed in this work for predicting the energy performances of the heat pump assisted regenerative solar still with phase changing material heat storage under Kazakhstan climates. The numerical model is based on energy and mass balance. A new regenerative heat pump configuration with phase changing material heat storage is proposed to improve the performance. A comparison of results has been made between the conventional solar still and heat pump assisted regenerative solar still with phase changing material. The numerical simulation was performed for wide range of ambient temperatures between-30 and 30 °C with wide range of solar intensities between 100 and 900 W/m 2. The numerical simulation results showed that heat pump assisted regenerative solar still is more energy efficient and produce better yield when compared to the conventional simple solar still. The influences of solar intensity, ambient temperature, different phase changing materials, heat pump operating temperatures are discussed. The predicted values were found to be in good agreement with experimental results reported in literature.

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“…Several experimental as well the theoretical studies were carried out to investigate the influence of PCM on the performance and thereby, productivity of a solar still. Sarhaddi et al 21 experimentally analyzed two weir‐cascade basin solar stills with and without paraffin wax, which have been founded to have energy and exergy efficiencies as 76.69% and 8.59% with paraffin wax. Yousef et al 22 reported the results for the performance of a single slope solar still with paraffin wax where during the sunshine hour productivity has been increased by 7%, and sunset hour productivity increased by 400%, compared to traditional solar still.…”

Section: Introductionmentioning

confidence: 99%

Performance assessment of a passive solar still integrated with thermal energy storage and nanoparticle stored in copper cylinders

et al. 2020

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Summary In the present study, nanoparticle (CuO) has been dispersed in paraffin wax and stored in a copper cylinder to enhance the thermal conductivity and increase the total daily production of the solar distillation unit. Experiments have been performed for comparison between simple solar still (SSS), solar still with phase change material (SSPCM), and solar still with phase change material doped with nanoparticle (SSNPCM). The mixing of nanoparticle causes a paradigm shift of the thermophysical properties of phase change material (PCM). Nanoparticle and copper cylinder enhance the heat transfer rate with decreased duration of sensible heating, melting and solidification of PCM. Thermal analysis reveals that the evaporative mode of heat transfer has dominated heat transfer between glass cover and water. The maximum and average temperature for water basin and NPCM has been increased significantly for SSNPCM. The daily productivity of SSPCM and SSNPCM has been increased by 40.5% and 94.19% as compared to SSS. Based on the heat transfer rate, thermal conductivity, and daily productivity, SSNPCM can be considered not only as a better performing system as compared to SSS and SSPCM but also as a low cost disruptive technology in resource‐constrained settings where drinking water is really scarce.

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Comparative study of two weir type cascade solar stills with and without PCM storage using energy and exergy analysis

Cited by 161 publications

References 29 publications

Energy and exergy analysis of solar stills with micro/nano particles: A comparative study

Energy and exergy analysis of solar stills with micro/nano particles: A comparative study

Numerical simulation of a heat pump assisted regenerative solar still with PCM heat storage for cold climates of Kazakhstan

Performance assessment of a passive solar still integrated with thermal energy storage and nanoparticle stored in copper cylinders

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